I want to add a mesh circle to my blender scene using script.
I can add lamps, cameras and a mesh( which comes out as a single dot or vertices) but what is the syntax to make it a circle or any standard shape from the mesh menu.

and can anyone give me a good source to finding syntax for blender scripits?

Blender.NMesh.
One of the things in Blender.NMesh will return an empty mesh if none is specified. Why cannot a circle be created with trig, NMVert s and two edged NMFace s?

I don't have code right now, but I see no reason for blender to expose (most of) the primitives in the add menu. They can be created quite easily (if you are conscious, which I am not currently) using python.

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syntax for blender scripts?
you mean example code?
or what can be done with avaliable modules?

Blender will not let you specify where and what size of circle you want. I know you can position your insertion point on screen but then you have go edit the circle again maybe the location and size. I am working on a script to insert a circle to a specified XY position and give it a radius . I will have to brush up on my trig i guess sense blender may not let you use all it's tools.